| 摘要 |
<p>The present invention provides, with little process pollution, a fiber which when put in high-temperature water, can retain the weight of a resin and the shape for a certain period and be thereafter degraded. A core-sheath type composite fiber composed of a core part and a sheath part, wherein: a resin composition (C) which comprises both a resin (A) that exhibits autocatalysis and a hydrolysis suppressor (B) is positioned in the core part; and a resin composition (D) which comprises a resin (A') that exhibits autocatalysis and which is substantially free from the hydrolysis suppressor (B) is positioned in the sheath part.</p> |
